Buffing wheel



1,640,032 A 1927' J. J. FIECHTER BUFFING WHEEL Filed April 29. 1926INVENTOR Patented Aug. 23, 1927.

UNITED STATES PATENT OFFICE.

JOHN J. FIECII'IER, OF WILLOW GROVE, PENNSYLVANIA, ASSIGNOR TO HEINTZMANUFACTURING COMPANY, OF PHILADELPHIA, I'ENNSYLVANIA, A CORPORA- 'IIONOF PENNSYLVANIA.

This invention relates to buffing Wheels, and more particularly relatesto buffing wheels suitable for polishing curved surfaces of sheet metalpanels or plates.

The principal object of this invention is to provide a simple andinexpensive buffing Wheel, which is durable and more efficient andconvenient to use, especially on curved surfaces.

Other objects of this invention will be in part obvious and in partpointed out hereinafter.

In accordance with my invention, the buffing wheel is flexible sidewise,and the side surfaces of the wheel are the bufiing surfaces. The outeredges of the periphery also present buffing surfaces which curve fromthe sides inwardly of the wheel. The

abrasive material is applied to the sides of the wheel. With a wheel ofthis character,

the buffing of curved surfaces may be ac- :omplished more quickly,better and more easily than with wheels whose rims present the buffingsurfaces.

In order that a clearer understanding of this invention may be had,attention is hereby directed to the accompanying drawings, forming apart of this application and illustrating one possible embodiment of theinvention.

Referring to the drawings, Fig. 1 is a perspective view of a bufiingwheel embodying the invention; Fig. 2 is a sectional view thereof, andis taken on the line 2-2 of Fig. l; and Fig. 3 is a diagrammatical planview of one of the multiplex layers of the buffing material. Similarreference characters refer to similar parts throughout the several viewsof the drawings.

Referring to the drawings, the wheel comprises a hub 1, which has agroove 2 formed around its periphery. On this hub are bound rings ofmaterial, one over the other, and each secured in place by wire drawn 4tightly thereabout. For instance, as shown,

the innermost ring 3 of material is bound in place by wire 4. The nextlayer 5 is bound in place by wire 6, and so forth, the outermost layer 7being bound in place by wire 69 8. If desired, a finishing strip 9 ofsuitable s BUFFING WHEEL.

Application filed April 29, 1926. Serial No. 105,370.

fabric may be pasted around the layer 7 to cover the wire 8. A wheel ofthis forma tion is flexible sidewise, and toward the outer edge of thewheel the fabric tends to curve inwardly, as at 10. The wires securelyand tightly hold the fabric on the wheel against becoming loosenedtherefrom during use of the wheel.

Each layer or ring of material, such as 3, 5 and 7, may be made up of aplurality of strips 11 of cotton or other suitable mategial and whichare preferably cut on the The hub 1 may be plain or threaded, as at 12.Preferably, the hub is made so thin that, when secured in place by meansof a nut, the nut will seat inside of the grinding surfaces of thewheel.

Fig. 2 possibly may show the construction in an ideal form, for in theactual commercial construction all the binding wire rings may not be orremain in the same radial plane, and it is contemplated that the ringsof wire may be staggered or otherwise out of exact concentric alignment.

As many changes could be made in the above construction and as manyapparently widely different embodiments of this invention could be madewithout departing from the scope thereof, it is intended that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative and not in a limiting sense.

YVhat I claim is 1. A buffing wheel. including a hub, rings of materialsurrounding said hub and disposed one over the other, and meansintermediate each ring of material binding said rings on said hub. v 2.A bufling wheel, including a hub, rings of buffing material surroundlngthe hub and disposed one over the other and bound in place by means ofseparate bands of bindin material intermediate adjacent rings of but ingmaterial.

This specification signed this 19th day of April, 1926.

JOHN FIEGHTER.

